Said gabe



July 31, 1923.

J. E. GODMAN ET AL ELECTRIC HEATING ATTACHMENT FOR CARBUHETORS FiledMarch 15. 1920 INVENTOR .121 E. Goo/VIA J'QJEP/i. M. 6342a A1TORNEY$IPatented July 31, 1923,

UNITED STATES 1,463,774 PATENT. OFFICE.

JOHN E. GODMAN AND JOSEPH M. GARE, OF LAFAYETTE, 'INTJIA'NA; SAID GARE.

. ASSIGNOR T SAID GODMAN.

ELEcTnIoHEATINo ATTACHMENT FOR cansunn'rons.

Application filed March 13, 1920. Serial No. 365,410.

To all whom. it may concern:

Be it known thatwe, JOHN E. GODMAN and JOSEPH M. GARE, citizens of theUnited States, and residents of Lafayette, county of Tippecanoe, andState of Indiana, have invented a'certain newand useful Electric Heating"Attachin'ent .for Carburetors; and

we do hereby declare that the following is a full, clear and exactdescription thereof, reference being had to the accompanying drawings,inwhich like numerals refer to like partsf The chief ob'ect of thisinvention is to provide the car uretor or the intake manifold of aninternal combustion engine with an improved heating element forassisting the,- evaporationfo'f' the hydrocarbon fuel atomized andcarb'urized by the usual carburetor. v

The mainfeature of the invention consists in oonstructin the improvedheating element of suitable materials and operating the same from thebattery of the motor vehic-leor the Iikef,of which the engine is a part.

Another feature of the invention consists in positioning the electricalheating means adjacent the walls of the fuel intake passageway such thatthe efficiency of the fuel suppl is not impaired.

A fiirther feature of the invention is that the heating means may besupplied to the carburetor flange and inserted therein after recessi thesame.

The ull nature of the invention will be understood from the accompanyingdrawings and the following description and claims.

In the drawings Fig. 1 is an elevation view of the invention showing thesame applied to an internal combustion engine. Fig. 2 is an enlargedplan view of the heating element with a portion broken away to showother parts in detail. Fig. 3 is a central sectional view taken on line33 of Fig. 2.

In Fig. 1 there is shown an internal coinbustion engine provided withthe usual exhaust manifoldll, intake manifold 12, and carburetor 13. Theinvention in this figure is shown positioned between the ends of theintakemanifold and the carburetor and secured thereto by suitable means,such as the bolts 14 and the like.

The improved heating element comprises a body portion 15, substantiallyelliptical in form. Said body portion near the extremities of the majoraxis is provided'with a' plurality of openings 1,6 adapted'to receivethe bolts 14 for securing said heating element to the carburetor or theintake manifold, or both as desired. The body portion 15 is providedwith a central circular opening 17 exter din tlierethrough.Communicating with sai circularopening and concentric therewith is anannularsemi-circular groove 18. Positioned'within said grooveisasemiannular shield 19 which serves to direct'the heat centrally and awayfrom-the-body portion 15, as well as electrically insulate theindividual coils 20 of the substantially annular, helical, electricheat" coil 21: The heating coil 21is 'ovid with terminal posts 22, saidposts lieing suitably insulated from each otherand the body portion 15by means of the insulating plate 23 'and'insulating bushings 24,substantially as shown. Suitable nuts 25 secure the circuitwires to theheating element. r F

The electrical circuit is herein shown comprising the usual storage'battery 26, a switch 27, suitably positioned on the cowl, or dash, theammeter 28, and the ground connection 29. Insulated wires connect thebattery, switch, ammeter and heating element in series, as shown, andsaid heating element will be energized when the switch 27 is operated toclose the circuit through the battery.

As shown clearly in Fig. 2, the carburized mixture will pass u wardlythrough the exposed portions of the annular, helical heating coil and beheated to further vaporize the hydrocarbon fuel. In Fig. 1 the-heatingelement is shown positioned between the adjacent receiving end of theintake manifold and the discharging end of the carburetor. Said heatingelement, however, may be positioned in the flanges of either the intakemanifold or the discharge portion of the carburetor. The heating elementalso may be positioned upon the intake manifold and upon the dischargeportion of the carburetor such thatthe heating coils 21 will be incontact with either of said parts, as desired, instead of in directcontact with the carburized mixture. 'When not in direct contact withthe carburized mixture, it will, of course, be understood that suitableelectrical insulating material must be interposed between the metallicintake or carburetor and thehea.ting,. x )i ls.- The. preferred, most.ecuopening thereth rough for the passa e of fuel no "cal ind easilymountedi'operuting posi-gi to he engine, an annular electri'czil heatingtion is that shown in Fig. 1, wherein the ciement surrounding sniclcentral openin" heating coils 21 are directly exposed to the and securedto the inner wall thereof, sai sfiiisuigfcarbfirize'd-'inixture'nndthehizting -element beinginrrunged to= extend-fepartially 40 element isinterposed between theadjacent into said opening and leave a centralfree k end of the intake manifold and the discln i'gpassagethciethrongh.

i end of theiarburetor. 2. An electric heait'ei for the intake of an ilethe inventionjhas been described in internal combustion engine,comprising a 10 real. detail, it will be understood that the bodyorcionprovidcd with a central open- 45 rogdertfeaturesfilereof-gtear-it; reheating ing therethrough, an annular semi-qircular th e dcarliurized-;mixture,,xaspecially when groove in themillet-said bod'y portion'c'omtarting a; opldmqtorl by means independentmunicuing 'with'saidopening 51nd concentric ,of-i-theiusualpre-ileatingdevices.;hcretofore thereii'ith, and an annular eleclriealhelical "j 15em loye'd, is'nojytohelimited-by flietletuil heating coil positionedinsaid'groov'eladja- 60 i&.-mhich the saime'has'been describecl, ascentfand p rojectin wp'a-i'tiall intoseidopenfile central orn-(moft-said 5 inany mddifioations;--thereofiwilL suggest ing so as tolea've vthe 'pe'seage of ine! therethemselves-to thoseskilledin theart,.;. vopenin free for Itnvilb be noted that-tlmggpliaiidm of this Ithrong 1. 11- go hegting deeiceto theln oto is ndaptnbie to 3.Anelectric heater fox-the intake oia'n in- 65 n installationeither-.betv :een.-,the'- cn:rbi retor ternal.combustionjengine'comprisingufb'ody -end. mamifold orqbetn'een 1l 1 e .gnanif0ld, an'l portionproviiied'with an intake" and z iengine heing seoured ga djucent the {hnged an inner peripheral groove cofiimimicnting r: -com1 eetions of-the;carburetor or, manifold as. with said opening, insnlating nikterinlposizi-thowcasegngi'he ormay be-instnllecl inthe lioned in said groove,'zind .a helicill heating 00 .-'icarli\ n'etor. eer-in the side of theon coil mounted in said inneriperi iherfilgroove gi fixmayi so-be madehelical,;straight, positioned ndjaeent said insilleting'hlgte'rialAge-ta, gered,-.on a ny-.other shape to conform and estending pj itiallyinto's iidopening so .i: git ithe-shnpezofqtbe fla ed connection of asto reheat iiie'fuel 'p'a's'sing throiigli said seagheamembersbetween-'whiifil it issecured or opening and ;lei i \;e anunobstructed'r'central o5 passage thcret ln ougl1 ir-w'ghviilvenfiionclaimed 1 1 1 In witness w l'i'ereof,wehavfherennto 1. An electric heaten-for'the.intakeof rm. afiixeclourgsignaftnres. V V

-;-inter=nal {combustion ,engine comprismg n l JOHN GiODMiK-N;

35 rbodrportiomprovidedwith a central intake JOSEPH M; GABR-

